Professional USB Digital Sound Pressure Tester Level Meter Decibel Noise Measurement Tool

Specification: Frequency range:31.5Hz~8.5KHzLevel range: 30~80dB, 40~90dB, 50~100dB, 60~110dB, 70~120dB, 80~130dB, 30~130dBLinearity weighting: 50dBFrequency weighting: A/CDigital display: 4 digitsResolution: 0.1dBSample rate: 2times/secondBar graph: 50dB scale 1dB step for monitoring current sound pressure level display Sample rate: 20 times/secondOver indication: OVER/UNDERAC output: 0.707Vrms at FS output impedance approx 600ohmDC output: 10mV/dB, output impedance approx 100ohmTime weight: FAST/SLOWMicrophone: ½ inch electret condenser microphoneMax hold: MAXPower supply: 1.5V AA alkaline battery (the battery is not included) or USB 5V 100mAPower life: About 30 hours(alkaline battery)Self calibration: 4SOperating condition: 0℃~40℃, 10~80%RHStorage condition: -10~50℃, 10~80%RHSize: Approx. 24 x 7 x 3.5cm/9.45 x 2.76 x 1.38inch Package Includes: 1x Professional Sound Level Meter1x USB Cable1x English Instruction Manual Note: not operation the meter at high Humidity environment.e take out battery from the meter if not in use for long time. using the meter in the presence of wind, it is a must to mount the sponge ball to not pick up undesired signals. Giá sản phẩm trên Tiki đã bao gồm thuế theo luật hiện hành. Bên cạnh đó, tuỳ vào loại sản phẩm, hình thức và địa chỉ giao hàng mà có thể phát sinh thêm chi phí khác như phí vận chuyển, phụ phí hàng cồng kềnh, thuế nhập khẩu (đối với đơn hàng giao từ nước ngoài có giá trị trên 1 triệu đồng).....